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Technical Data Sheet
PartsTable / COMPONENT / ASSY90048
ASSY90048 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 1.5625 INCHES NOMINAL IN, bore_diameter: 1.6250 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM IN, overall_width: 2.1875 INCHES MINIMUM AND 2.1975 INCHES MAXIMUM IN, standout_width: 0.3125 INCHES NOMINAL IN, special_features: BENCH LATERAL 0.0040 IN. TO 0.0060 IN.

IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-469-8303, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
ASSY90048
NSN: 3110-00-469-8303
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width1.5625 INCHES NOMINAL IN
bore_diameter1.6250 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM IN
overall_width2.1875 INCHES MINIMUM AND 2.1975 INCHES MAXIMUM IN
standout_width0.3125 INCHES NOMINAL IN
special_featuresBENCH LATERAL 0.0040 IN. TO 0.0060 IN. IN
style_designatorSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES, NON-ADJUSTABLE, STEEP ANGLE
cone_corner_radius0.0312 INCHES NOMINAL IN
backface_corner_radius0.0625 INCHES NOMINAL IN
overall_outside_diameter3.6250 INCHES MINIMUM AND 3.6260 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-469-8303
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: ASSY90048 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BORE DIAMETER: 1.6250 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM IN
•
CONE CORNER RADIUS: 0.0312 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CUP WIDTH: 1.5625 INCHES NOMINAL IN
•
RETAINER FABRICATION METHOD: PRESSED
•
STANDOUT WIDTH: 0.3125 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 3.6250 INCHES MINIMUM AND 3.6260 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER1.6250 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM IN
CONE CORNER RADIUS0.0312 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CUP WIDTH1.5625 INCHES NOMINAL IN
SPECIAL FEATURESBENCH LATERAL 0.0040 IN. TO 0.0060 IN. IN
RETAINER FABRICATION METHODPRESSED
STANDOUT WIDTH0.3125 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER3.6250 INCHES MINIMUM AND 3.6260 INCHES MAXIMUM IN
OVERALL WIDTH2.1875 INCHES MINIMUM AND 2.1975 INCHES MAXIMUM IN
BACKFACE CORNER RADIUS0.0625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
4920Interchangeable
interchangeable cross-reference
interchangeable
1492000Interchangeable
interchangeable cross-reference
interchangeable
4920-010Interchangeable
interchangeable cross-reference
interchangeable
24174Interchangeable
interchangeable cross-reference
interchangeable
11729771Interchangeable
interchangeable cross-reference
interchangeable
0490-009Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASSY90048?
ASSY90048 is a BEARING,ROLLER,TAPERED.
What parts can replace ASSY90048?
There are 11 known substitutes for ASSY90048: 4920, 1492000, 4920-010 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ASSY90048?
ASSY90048 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-469-8303. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026